I help a friend out fixing the house she want to sell but didn't have the fund to fix it up. I offer to help fix the house up. There was a sign contract state the bill will be paid on closing. As the work was near completion she decided to hire someone to finish the house.now she avoid my contact and I thing she not goin to paid me what on the sign contact.can I put a lien on the house and have it remove after she paid me